diff options
Diffstat (limited to 'crypto/include/internal/ctype.h')
-rw-r--r-- | crypto/include/internal/ctype.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/crypto/include/internal/ctype.h b/crypto/include/internal/ctype.h new file mode 100644 index 0000000000..a35b12bfbf --- /dev/null +++ b/crypto/include/internal/ctype.h @@ -0,0 +1,80 @@ +/* + * Copyright 2017 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +/* + * This version of ctype.h provides a standardised and platform + * independent implementation that supports seven bit ASCII characters. + * The specific intent is to not pass extended ASCII characters (> 127) + * even if the host operating system would. + * + * There is EBCDIC support included for machines which use this. However, + * there are a number of concerns about how well EBCDIC is supported + * throughout the rest of the source code. Refer to issue #4154 for + * details. + */ +#ifndef INTERNAL_CTYPE_H +# define INTERNAL_CTYPE_H + +# define CTYPE_MASK_lower 0x1 +# define CTYPE_MASK_upper 0x2 +# define CTYPE_MASK_digit 0x4 +# define CTYPE_MASK_space 0x8 +# define CTYPE_MASK_xdigit 0x10 +# define CTYPE_MASK_blank 0x20 +# define CTYPE_MASK_cntrl 0x40 +# define CTYPE_MASK_graph 0x80 +# define CTYPE_MASK_print 0x100 +# define CTYPE_MASK_punct 0x200 +# define CTYPE_MASK_base64 0x400 +# define CTYPE_MASK_asn1print 0x800 + +# define CTYPE_MASK_alpha (CTYPE_MASK_lower | CTYPE_MASK_upper) +# define CTYPE_MASK_alnum (CTYPE_MASK_alpha | CTYPE_MASK_digit) + +/* + * The ascii mask assumes that any other classification implies that + * the character is ASCII and that there are no ASCII characters + * that aren't in any of the classifications. + * + * This assumption holds at the moment, but it might not in the future. + */ +# define CTYPE_MASK_ascii (~0) + +# ifdef CHARSET_EBCDIC +int ossl_toascii(int c); +int ossl_fromascii(int c); +# else +# define ossl_toascii(c) (c) +# define ossl_fromascii(c) (c) +# endif +int ossl_ctype_check(int c, unsigned int mask); +int ossl_tolower(int c); +int ossl_toupper(int c); + +# define ossl_isalnum(c) (ossl_ctype_check((c), CTYPE_MASK_alnum)) +# define ossl_isalpha(c) (ossl_ctype_check((c), CTYPE_MASK_alpha)) +# ifdef CHARSET_EBCDIC +# define ossl_isascii(c) (ossl_ctype_check((c), CTYPE_MASK_ascii)) +# else +# define ossl_isascii(c) (((c) & ~127) == 0) +# endif +# define ossl_isblank(c) (ossl_ctype_check((c), CTYPE_MASK_blank)) +# define ossl_iscntrl(c) (ossl_ctype_check((c), CTYPE_MASK_cntrl)) +# define ossl_isdigit(c) (ossl_ctype_check((c), CTYPE_MASK_digit)) +# define ossl_isgraph(c) (ossl_ctype_check((c), CTYPE_MASK_graph)) +# define ossl_islower(c) (ossl_ctype_check((c), CTYPE_MASK_lower)) +# define ossl_isprint(c) (ossl_ctype_check((c), CTYPE_MASK_print)) +# define ossl_ispunct(c) (ossl_ctype_check((c), CTYPE_MASK_punct)) +# define ossl_isspace(c) (ossl_ctype_check((c), CTYPE_MASK_space)) +# define ossl_isupper(c) (ossl_ctype_check((c), CTYPE_MASK_upper)) +# define ossl_isxdigit(c) (ossl_ctype_check((c), CTYPE_MASK_xdigit)) +# define ossl_isbase64(c) (ossl_ctype_check((c), CTYPE_MASK_base64)) +# define ossl_isasn1print(c) (ossl_ctype_check((c), CTYPE_MASK_asn1print)) + +#endif |